# File lib/prawn/font/afm.rb, line 56 def width_of(string, options={}) scale = (options[:size] || size) / 1000.0 if options[:kerning] strings, numbers = kern(string).partition { |e| e.is_a?(String) } total_kerning_offset = numbers.inject(0.0) { |s,r| s + r } (unscaled_width_of(strings.join) - total_kerning_offset) * scale else unscaled_width_of(string) * scale end end